201012211020017 has 2 divisors, whose sum is σ = 201012211020018. Its totient is φ = 201012211020016.

The previous prime is 201012211019957. The next prime is 201012211020041. The reversal of 201012211020017 is 710020112210102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164216049131761 + 36796161888256 = 12814681^2 + 6065984^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012211020017 - 2⁸ = 201012211019761 is a prime.

It is not a weakly prime, because it can be changed into another prime (201012211020067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506105510008 + 100506105510009.

It is an arithmetic number, because the mean of its divisors is an integer number (100506105510009).

Almost surely, 2^{201012211020017} is an apocalyptic number.

It is an amenable number.

201012211020017 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012211020017 is an equidigital number, since it uses as much as digits as its factorization.

201012211020017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 201012211020017 its reverse (710020112210102), we get a palindrome (911032323230119).

The spelling of 201012211020017 in words is "two hundred one trillion, twelve billion, two hundred eleven million, twenty thousand, seventeen".